Safe method and system for mobile or wireless computing or communication devices

Abstract

A new method and system are presented to drastically reduce the power absorbed by the body of the user's of mobile or wireless computing or communication devices, such as cell phones, so that the usage of those devices become safe for the users. In one case, multiple antennas are used, and the transmission is done in multiple steps or stages. The first antenna (the closest to the user) operates with extremely low power for short distances. In addition, the distance between the user and the last antenna is increased drastically. In another case, multiple frequencies are used, in combination with multiple antennas. The frequency chosen for the first antenna is selected from a range of frequencies corresponded to the low power absorption for a specific human tissue or for overall human body, as a weighted average. Other variations are also described in detail.

Description

BACKGROUND OF THE INVENTION[0001]Cellular phones have become very popular, not only for transmission of voice, but also for the transmission of text, data, and multimedia, converged to a form of a wireless PDA or a computer. In many parts of the world, cell phones and related technologies help people to become more mobile and resourceful. With ease of communication and speed and availability of data, all other industries, cultures, and most aspects of daily life have been influenced and drastically changed.[0002]Despite the advantages of wireless, remote, or mobile communication and computation, one problem has not been solved yet. Because the wireless phones, pagers, radios, PDAs, gadgets, hand-held devices, appliances, or computers are in close proximity to the users' bodies, the radiated electromagnetic fields interact with nearby biological tissues. The antenna gain, radiation pattern, and input impedance are modified. In addition, the power absorption and signal blocking by hum...

AI Technical Summary

Benefits of technology

[0020]In this invention, a new method and system are presented to drastically reduce the power absorbed by the body of the user's of mobile or wireless computing or communication devices, such as cell phones, so that the usage of those devices become safe for the users.

[0021]In one embodiment, multiple antennas are used, and the transmission is done in multiple steps or stages. The first antenna (the closest to the user) operates with extremely low power for short distances. In addition, the distance between the user and the last antenna is increased drastically.

Problems solved by technology

Despite the advantages of wireless, remote, or mobile communication and computation, one problem has not been solved yet.

In addition, the power absorption and signal blocking by human head, hand, and other parts of the body, with corresponding health concern and complications (such as brain cancer), require immediate solution and action by the hardware manufacturers, service providers, regulators, health organizations, consumer advocates, scientific communities, and government agencies around the world.

None of these references have a very effective solution for the radiation problem (absorption by user's body, and its health consequences, such as brain cancer).

None of these patents have a very effective solution for the radiation problem.

Thus, these are not effective solutions for the radiation problem.

However, due to still close proximity of the antenna to the user's body, the radiation problem still exists.

In summary, shielding is not an effective solution for the radiation problem.

However, to prevent the wire being entangled, they usually keep the length of the wire short.

Therefore, the radiation problem still exists.

In addition, having a short wire, the choices of positioning the handset is limited.

Furthermore, sometimes, when an entangled or a long wire accidentally gets yanked, the thin metal in the wire gets disconnected permanently, rendering the ear-piece useless.

In short, the radiation problem is not effectively solved by this method, and this is not a convenient solution.

Similarly, PC headsets, such as Plantronics LS-1 Analog PC Headset, have wire connections, and thus, have the same problems as those of Jabra EarBoom, mentioned above.

The problem with this headset is that it only works with Bluetooth-enabled appliances, and within that (Bluetooth) environment (within a short range of distances).

Thus, for example, the user can work in his office with other Bluetooth-enabled appliances, but the user cannot operate that in his car, in his house, or in the park, where other Bluetooth-enabled appliances are not available.

However, most of these systems are not practical for a user walking in the street, for example.

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